Ventilating-sash lock



Dec. 19, 1922. 1,438,995.

` w. Gon.

VENTILATINGSASH LOCK. ORIGINAL FILED APR. le. 1917.

I U i if; "will y y I ldatented Dec. i9, 1922,

VENTIJiflTING-SASH LOCK;

Application filed April 16, 1917Serial No. `162,562. Renewed Aprill', 1952,22.` Serial No. 553,927.

Be it known that I, wWiiirNnr Goi'r, ain a citizenof the United States,residingat Kansas City,-in the county ot' Jackson and State of Missouri, have inventedl certain new and useful improvements in Ventilating-dash Locks, oi which the following is a specifica-` tion. l

This invention relates to dow sash locks, andlias for itsobjectto produce a device which will permit the lower sash to be raised or the upper sash to be lowered a predetermined distance, .but no Jfurther', regardless of the pressure applied or how much the window isi shaken, and which furthermore can not be unlocked by means of a wireor blade applied tothe fastener through the crack or@ opening formed between the two sashes when one of them is partly opened and the lock is in oper ative position. A. further. object is to produce a loc-k of the character mentionedwhich will not yield under the application of -l'orce applied through a crow bar or jimmy, -unless the force is suiiicientto destroy thesaslies or one of them. i y 1 Another object is y to produce a simple, strong, durable, and cheap sash lock possessing. the featuresot advantage above set` forth, and which can be easily and quickly applied'in operative position by an unskilled person, and in which the retaining devices 4are not subjected to material strain in the event it is attempted to pry the lower sash upward ory the upper sash downward, but which, on the other hand, under such conditions, will utilize the lower sash to resist upward movement thereof or downward movement of the upper sash.

lith the objects named in view, the iiivention consists in certain novel and peculiar features ot construction and combinations of parts as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawing, in which:

i Figure l, is a fragmentary inner side view of window sashes equipped with a venti1at ing window sash lock embodying my invention.

Figure 2, is a horizontal section on the'line lll-II oi Figure l. on an enlarged scale.

Figure 3, is a detail elevation of the sash lock as viewed in the direction indicated by the arrow, Figure 2.

Figure 4, is a Ventil ating. win-` tragmentaryr elevation ot the sash lock viewed iii the. opposite direction to that indicatedby said arrow.`

Figure 5, is a section on the line V-fV ot Figure 4. f

The sash lock comprises a stationary member l anda member 2 pivotally suspended land detachable from member l.

The member l is inthe form oa right angle shaped bar, comprisingarms 3 and 4.

This bar is iitted at the desiredlieight' above the-lowersash. to the innercorner oione of the vertical rails orV sides of' the upper. sash, preferably the left hand railor sidev as shown, the arms fitting flatly against said rail or side as shown elearlyin liigure 2, and`to're= tain the member l inthe position referred to,r screws 5 extend ,through the` ai'm3` and into the said railorside ot the upper sash. jl/Vith inafter appear, it being understoodhowever that the provision of avplurality of the slots is to determine the amount ofiopeningmove# ment which can be imparted to either of the sashes or to both ot the sashes, if it is desired to partly raise one and lower the other.

The adjustable pivoted member 2, coinprises a flat arm 8 to lit flatly against arm 4 oi' member l, and a stop lug 9 to overlie the y lower sash, said stop lug being disposed in a horizontal plane above the lower extremity ot arm 8 so that when the lower sash is engaged with said stop lug it will be overlapped at its outer side by the lower end of arm 8 which will be brought to bear against the upper rail of the lower sash, in the event an attempt is made to swingT memberQ from the full line position in Figure 3, toward the dotted line position, same ligure, and in this connection it will be noted that to guard against lug" 9 cutting the vupper rail of the lower sash should the saine be raised violently or i'orced vupward with considerable pressure, an arm 1U `projects laterally from the lower end of the lug. l

Stamped outoi' the arin S near its upper end, is a pair oi tongues ll, said tongues being bent to torni oppositely projecting books, as shown most clearly in Figure 5.

These'lmoks are of size to `readily passl zontally and that `the hooks ll shall 'extend' vertically of theirvrespective members, so that it will be'necessary' to dispose member S in the position shown by dotted lines, Figing'e', in order to engage the two members pivotally together as explained., itv being un" derstocd in this connection( that the inner arms of the Vhooks 11 extend through vand operate pivotally in the widened central portionfoi the slot. In this connection it will be noticed that the space 6 hereinbetore men` tioned as being provided I,betweenthe molding edge of the rail or sash and the arm 4; of memberl, accommodates the pivot hooks ll of lmember 2 so that the latter shall be, free to operate pivotally as explained'. y It is obvious that if a variation in adjustment is desired so as to give more Ventilatioin Y the member 2 Will be engaged with the upper slot 7, and iftheleast ventilation is desired, the member 2 Will lbe engaged with Lthe slot 7 nearest the loiver endet member il. It isv also obvious that the member 2 can be readily removed after being swung to substantially the position shoivnin dotted lines, Figure 23, so as toleave the sashes free to be fully opened if desired. Q l

By reference to Figure 3, 'it will be seen that any attempt to lower the outer sash or raise thc inner sash will result in the engagement of the stop lug S) with the upper edge of the inner sash. Under such engagement themember 2 tends to swing inwardly and upwardly, but this is ijirevented because that portion ot said member which depends beyond the plane ol2 the stop lug will be caused to swing against the outer ac'eof said sash and thus prevent appreciable pivotal movement.

From the above description it will. be apparent that I have produced a sash lockernbodying the features ofadvantage set 'iorth as desirable in thestatement o'ithe object of the invention,Y and While have illustrated the embodiment of the same which at, this time appears the most practical, it' to be understoody thatl'reserie the t 'to `all chang scope of the appended claim.

yIclaim: A Window sash lock7 comprising ay membero'fright angle shape in cross 'section and provided With a plurality oi: horizontall),vv elongated openings at different :points in the length et one ot its arms, and a second member fitting atly against the' armfoil the first-named member having the openin`A and provided with a pair of bent ltongues detachably interloeled ivith the first-named member through one of its openings'to per mit a pivotal movement ot the second member; saidsecond member being ivf l nedat an intermediate point'in its' length to provide a Stop lug in a plane' above the lower extremity of said member. A'

ln testimony whereof,l l 'my signature.

WHITNEY eoir.l

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